0 Returns for diesel electric anM electric locomotives represent the number of locomotives, i.e., any combination of locomotive units operated under a single control at the close of each month.

U. S. GOVERNMENT PRINTING OFFICE: 1955 0- 360315(5)

* Cumulative figures shown in this statement represent averages of the number of units of equipment reported at the close of each month within.the cumulative period.
The averaged, are computed for each railway separately and then totaled.